Trends in Practical Applications of Agents and Multiagent Systems : 11th International Conference on Practical Applications of Agents and Multi-Agent Systems - Pérez, Javier Bajo.; Rodríguez, Juan M. Corchado.; Fähndrich, Johannes.; Mathieu, Philippe.; Campbell, Andrew.; Suarez-Figueroa, Mari Carmen.; Ortega, Alfonso.; Adam, Emmanuel.; Navarro, Elena.; Hermoso, Ramon.; Moreno, María N. (Springer International Publishing : Imprint: Springer, 2013)